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<?php error_reporting(E_ALL & ~E_NOTICE); $foo = array("bar" => "baz", "null" => "void"); print_r($foo[bar]); //this works, as it will assume $foo["bar"] print_r($foo[null]); //null is a defined constant, so it will look for a value with an empty key which is not defined
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught Error: Undefined constant "bar" in /in/QW8qV:4 Stack trace: #0 {main} thrown in /in/QW8qV on line 4
Process exited with code 255.

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